Remove all blimp network code.

blimp/net/blimp_message_thread_pipe.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BLIMP_NET_BLIMP_MESSAGE_THREAD_PIPE_H_
-#define BLIMP_NET_BLIMP_MESSAGE_THREAD_PIPE_H_
-
-#include <memory>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "blimp/net/blimp_net_export.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace blimp {
-
-class BlimpMessageProcessor;
-
-// Uni-directional MessageProcessor "pipe" that accepts messages on
-// one thread and dispatches them to a MessageProcessor on a different
-// thread.
-//
-// Typical usage involves:
-// 1. Create the pipe on the "main" thread, specifying the target thread's
-//    task runner.
-// 2. Take one or more MessageProcessor proxies from it.
-// 3. Post a task to the target thread to set the target MessageProcessor.
-// 4. Start using the MessageProcessor proxy(/ies) on the main thread.
-// 5. When the target MessageProcessor is about to be destroyed on the
-//    target thread, destroy the pipe instance immediately beforehand.
-//    Any messages that are subsequently passed to a proxy, or are already
-//    in-flight to the pipe, will be silently dropped.
-class BLIMP_NET_EXPORT BlimpMessageThreadPipe {
- public:
-  explicit BlimpMessageThreadPipe(
-      const scoped_refptr<base::SequencedTaskRunner>& task_runner);
-  ~BlimpMessageThreadPipe();
-
-  // Creates a proxy MessageProcessor that routes messages to
-  // the outgoing MessageProcessor on |task_runner|.
-  // Proxies are safe to create before the outgoing MessageProcessor
-  // has been set, but cannot be used until it has after been set -
-  // see the class-level comment on usage.
-  // Proxies must be deleted on the thread on which they are used.
-  std::unique_ptr<BlimpMessageProcessor> CreateProxy();
-
-  // Sets/gets the target MessageProcessor on the target thread.
-  void set_target_processor(BlimpMessageProcessor* processor);
-  BlimpMessageProcessor* target_processor() const;
-
- private:
-  // Target MessageProcessor & TaskRunner to process messages with.
-  BlimpMessageProcessor* target_processor_ = nullptr;
-  scoped_refptr<base::SequencedTaskRunner> target_task_runner_;
-
-  // Allows |this| to be safely detached from existing proxies on deletion.
-  base::WeakPtrFactory<BlimpMessageThreadPipe> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpMessageThreadPipe);
-};
-
-}  // namespace blimp
-
-#endif  // BLIMP_NET_BLIMP_MESSAGE_THREAD_PIPE_H_